TM-9-2330-356-14

SEMITRAILER, TANK: 5000 GALLON, BULK HAUL, SELF LOAD/UNLOAD M967 AND M967A1; SEMITRAILER, TANK: 5000 GALLON, FUEL DISPENSING, AUTOMOTIVE M969 AND M969A1; SEMITRAILER, TANK: 5000 GALLON, FUEL DISPENSING, UNDER/OVERWING AIRCRAFT M970 AND M970A1

TECHNICAL MANUAL; OPERATOR’S, UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL

OCTOBER 1990

TM-9-2330-356-14 - Page 381 of 528

Figure 7-30. Governor Cup Assembly.

TM 9-2330-356-14

7-34. Camshaft and Tappets

a.

Remove engine (para 5-20). Install engine in an

engine maintenance stand.

b.

Remove blower housing (para 7-14).

c.

Remove rocker arm covers (para 7-29).

d.

Remove gear cover assembly (para 7-32).

e.

Remove fuel injection pump (para 7-26).

f

Remove crankshaft gear retaining washer (8,

fig. 7-31) by removing retaining ring(7) on the crankshaft.

g.

Remove rocker arms and push rods (para 7-30).

h.

Remove oil base (para 7-31).

CAUTION

When removing camshaft be careful not to

damage bearings (24, 25, and 26, fig. 7-31).

i.

Lay engine on side to avoid dropping tappets (27)

and remove camshaft assembly (14) as a group. If

necessary,

pry it out with a screwdriver between camshaft

gear and crankcase. Remove retaining ring (15) and press

gear (16) off camshaft.

j.

Remove the valve tappets (27). These can be

removed only from bottom of crankcase.

k.

Refer to paragraph 7-36j and 7-36k, and remove

crankshaft gear.

l.

Camshaft Bearings. The camshaft bearings (24,

25, and 26, fig 7-31) should be replaced if clearance to

camshaft is greater than specified in table 7-2, or if

bearings show cracks, breaks, burrs, excessive wear, or

other defects. The camshaft-to-bearing clearance should

be 0.0012- to 0.0037-inch. To check rear bearing (24),

remove expansion plug (23) at rear of crankcase.

7-25